December weather forecastDelta Junction, AK
December
Weather in December
December comes with the coldest temperature averages ranging between a chilly 9.1°F (-12.7°C) to an even colder -1.5°F (-18.6°C). Coupled with this, the extended snowfall under the diminishing daylight hours of only 4.4, gives a distinct winter wonderland feel to Delta Junction. The extended cold, along with 8.1 snowfall days, ensures a breathtaking ice-capped landscape. Despite being the coldest, December is one of the most picturesque times of the year. Delta Junction, in all its icy glory, welcomes the end of the year with a blanket of pristine snow.Temperature
As November transitions into December, the average high-temperature rests at an extremely cold 9.1°F (-12.7°C), maintaining a close resemblance to the previous month. An average low-temperature of -1.5°F (-18.6°C) is noted during the nights in December.Humidity
In December, the average relative humidity is 86%.Rainfall
In Delta Junction, in December, it is raining for 2.4 days, with typically 0.31" (8mm) of accumulated precipitation. Throughout the year, there are 70.4 rainfall days, and 7.56" (192mm) of precipitation is accumulated.Snowfall
January through May, August through December are months with snowfall. In Delta Junction, in December, snow falls for 8.1 days, with typically accumulated 2.32" (59mm) of snow. Throughout the year, there are 56.2 snowfall days, and 18.66" (474mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 4h and 24min of daylight.On the first day of December, sunrise is at 10:01 am and sunset at 3:02 pm. On the last day of the month, sunrise is at 10:32 am and sunset at 2:59 pm AKST.
Sunshine
December has the least sunshine of the year, with an average of 2.3h of sunshine.UV index
January through March, September through December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.Note: In December, a daily UV index of 2 turns into the following recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. To protect against the Sun's most potent rays, avoid direct exposure around midday. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Delta Junction, AK
- Average high temperature in December: 9.1°F
The warmest month (with the highest average high temperature) is July (69.8°F).
The month with the lowest average high temperature is January (5.4°F).
- Average low temperature in December: -1.5°F
The month with the highest average low temperature is July (50.5°F).
The coldest month (with the lowest average low temperature) is January (-5.8°F).
Average pressure in December
Delta Junction, AK
- Average pressure in December: 29.85"Hg
The month with the highest atmospheric pressure is February (29.97"Hg).
The month with the lowest atmospheric pressure is September (29.77"Hg).
Average wind speed in December
Delta Junction, AK
- Average wind speed in December: 5.3mph
The windiest month (with the highest average wind speed) is May (5.8mph).
The calmest month (with the lowest average wind speed) is November (4.9mph).
Average humidity in December
Delta Junction, AK
- Average humidity in December: 86%
The month with the highest relative humidity is March (88%).
The month with the lowest relative humidity is May (51%).
Average rainfall in December
Delta Junction, AK
- Average rainfall in December: 0.31"
The wettest month (with the highest rainfall) is August (1.57").
The driest month (with the least rainfall) is February (0.24").
Average rainfall days in December
Delta Junction, AK
- Average rainfall days in December: 2.4 days
The month with the highest number of rainy days is August (12.3 days).
The month with the least rainy days is November (1.7 days).
Average snowfall in December
Delta Junction, AK
- Average snowfall in December: 2.32"
The months with the highest snowfall are March and October (2.99").
The months with the least snowfall are June and July (0").
Average snowfall days in December
Delta Junction, AK
- Average snowfall days in December: 8.1 days
The month with the highest number of snowfall days is November (9.6 days).
The months with the least snowfall days are June and July (0 days).
Average daylight in December /
Average sunshine in December
Delta Junction, AK
- Average daylight in December: 4h and 24min
The month with the longest days is June (Average daylight: 20h and 48min).
The month with the shortest days is December (Average daylight: 4h and 24min).
- Average sunshine in December: 2h and 18min
The month with the most sunshine is June (Average sunshine: 13h and 24min).
The month with the least sunshine is December (Average sunshine: 2h and 18min).
Average sunshine days in December
Delta Junction, AK
- Average sunshine days in December: 23.5 days
The months with the most sunshine days are January and December (23.5 days).
The month with the least sunshine days is August (17.4 days).
Average UV index in December
Delta Junction, AK
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, September, October, November and December (UV index 2).
Average cloud cover in December
Delta Junction, AK
- Average cloud cover in December: 43
The months with the most cloud cover are March and November (Cloud cover 45).
The month with the least cloud cover is May (Cloud cover 35).
Average visibility in December
Delta Junction, AK
- Average visibility in December: 5mi
The months with the highest visibility are May, June, July, August, September and October (6mi).
The months with the lowest visibility are January, February, March, April, November and December (5mi).
